Fountain spraying device



Nov. 2, 1937. A. A. MARYOTT FOUNTAIN SPRAYING DEVICE Fild Sept. 28. 1956Patented Nov. 2, 1937 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to fountain spraying devices, and has moreparticular reference to an improved device of this kind embodying anovel form of dispensing tank adapted to constitute a 5 reservoir forthe liquid to be sprayed and from which such liquid to be sprayed may beefiectively forced or dispensed by water under pressure in such a mannerthat the liquid to be sprayed will not be diluted by such water under 19pressure.

A more specific object of the present invention is to provide a sprayingdevice of the above kind wherein the liquid dispensing tank is dividedinto two non-communicating compartments by means of a flexiblediaphragm, wherein such tank is provided with a port communicating witheach compartment, and wherein a hose conveying water under pressure maybe connected with either port for supplying the water under 20 pressureto either compartment and actuating the diaphragm to discharge liquid tobe sprayed from the other compartment.

Other objects are to provide a fountain spraying device having adispensing tank of the above character which is simple in construction,economical to produce, efficient in operation, and convenient and easyto use.

Still further objects of the present invention will become apparent fromthe following description when considered in connection with theaccompanying drawing, in which:-

Figure 1 is an elevational view of a spraying device embodying adispensing tank constructed in accordance with the present invention;

Figure 2 is an enlarged plan view of one section of the tank shown inFigure 1 and looking interior thereof, the tank section being partlybroken away; and Figure 3 is an enlarged transverse section on line 3-3of Figure 1.

Referring in detail to the drawing, while the present inventionisadapted for general use in the dispensing of liquids, itis particularlydesigned for and useful in spraying trees and other vegetation. Asshown, the device includes a dispensing tank of elongated and preferablycylindrical form, and composedof two longitudinal half sections 5 and 6bolted or otherwise secured 50 together as at 1. Clamped at itsmarginbetween the half sections 5 and 6 of the tank so as to form awater-tight joint between said tank sections, is a flexible diaphragm 8which divides the interior of the tank into two non-communicating 55compartments or chambers. Each tank section is provided with a portsurrounded by a projecting nipple 9, thereby affording communicationwith each of the tank chambers. The nipples 9 are of similar form sothat the end of a hose l0 may be coupled with either nipple forsupplying water under pressure to either chamber of thetank at one sideof the diaphragm 8 for operating such diaphragm and forcing the sprayingliquid from the other cham ber of the tank at the opposite side of saiddiaphragm 8 and through the other nipple 9. A suitable outlet hose H isalso provided, adapted to be coupled at one end with either nipple 9 andprovided at its other end with a suitable spray nozzle i2.

It will be noted that the diaphragm 8 is of such a character or formthat it may be forced into engagement with the surface of either tanksection for completely discharging spraying liquid from either chamberof the tank. Also, the nipples 9 are preferably provided in the sections5 and 6 intermediate the ends of the latter, and in order to insureagainst clogging the nipples 9, as well as to insure complete dischargeof spray liquid from either chamber of the tank, an inwardly convexedscreen is arranged and suitably secured within each tank section so asto extend longitudinally and from end to end thereof in a planeintersecting the nipple 9 of such section. Each screen l3 thus preventscontact of the diaphragm 8 with the associated tank section throughoutthe length of the latter at a zone coincident with the nipple 9 of saidtank section, thereby permitting substantially complete discharge of thespray liquid from such tank section. It will particularly be apparentthat the screen B3 of each tank section will prevent the diaphragm 8from closing the nipple 9 of such section. In order to avoid distortionof the screen l3 to an objectionable extent and to substantiallymaintain the inwardly convexed form of each screen, a rod [4 extendslongitudinally of each tank section beneath the center of each screen I3or between the central portion of each screen and the opposed portion ofthe associated tank section.

In use, the liquid to be sprayed is introduced into the tank so as tosubstantially fill the latter at one side of the diaphragm 8, whereuponthe outlet hose i l is coupled to the nipple 9 at this side of thediaphragm and the water supply hose [0 is coupled to the remainingnipple 9. When water under pressure is allowed to flow into the tankthrough the hose ill, the diaphragm 8 will be forced by the pressure ofthis water in a direction away from the nipple 9 to which the hose IIIis coupled, thereby forcing the liquid to be sprayed from the tankthrough the other nipple to which the outlet hose i l is coupled. Whenthe spray liduid has been completely dispensed from the tank, the tankwill have become filled with water at the other side of the diaphragm,and another charge of spray liquid may be had by simply adding thedesired material to this water. The hose l0 and outlet hose ii are thenreversed so that the hose I0 is coupled to the nipple 9 to which theoutlet hose H was initially coupled and so that the outlet hose i l iscoupled to the nipple 9 to which the water supply hose H) was initiallycoupled. The new or second charge of spray liquid may then be similarlydispensed from the tank when water under pressure is supplied by thehose I 6. This operation may be repeated as often as desired, the waterused to dispense the spray liquid being utilized in forming the nextcharge of spray liquid.

From the foregoing description, it will be seen that I have provided aneihcient means for carrying out the stated objects of the invention.

What I claim as new is:-

1. In a fountain spraying device of the character described, adispensing tank of elongated form adapted to constitute a reservoir forthe liquid for spraying, a flexible diaphragm dividing the interior ofsaid tank into two non-communicating chambers, outlet nipples for saidtank at opposite sides of said diaphragm, said nipples being of similarform to facilitate connection of either of the same with a source ofsupply of water under pressure, said diaphragm being of a character tobe actuated by said water under pressure when introduced at one side ofsaid diaphragm to substantially completely discharge a liquid to besprayed from said tank at the opposite side of said diaphragm, saidnipples being arranged intermediate the ends of the tank, and inwardlyconvexed screens running longitudinally of the tank and over therespective nipples to prevent closing 01 the latter by said diaphragm.

2. In a fountain spraying device of the character described, adispensing tank of elongated form adapted to constitute a reservoir forthe liquid to be sprayed, a flexible diaphragm dividing the interior ofsaid tank into two non-communicating chambers, outlet nipples for saidtank at opposite sides of said diaphragm, said nipples being of similarform to facilitate connection of either of the same with a source ofsupply of water under pressure, said diaphragm being of a character tobe actuated by said water under pressure when introduced at one side ofsaid diaphragm to substantially completely discharge a liquid to besprayed from said tank at the opposite side of said diaphragm, saidnipples being arranged intermediate the ends of the tank, inwardlyconvexed screens running longitudinally of the tank and over therespective nipples to prevent closing of the latter by said diaphragm,and a wire arranged outwardly oi each screen and running from end to endof the tank beneath the central portion of said screen to maintain theinwardly convexed form thereof.

3. In a fountain spraying device of the character described, adispensing tank of elongated form adapted to constitute a reservoir forthe liquid to be sprayed, a flexible diaphragm dividing the interior ofsaid tank into two non-communicating chambers, outlet nipples for saidtank arranged intermediate the ends of the latter and at opposite sidesof said diaphragm, said nipples being of similar form to facilitateconnection of either of the same with a source of supply of water underpressure, said diaphragmbeing of a character to be actuated by saidwater under pressure when introduced at one side of said diaphragm tosubstantially completely discharge a liquid to be sprayed from said tankat the opposite side of said diaphragm, said tank being composed oflongitudinal half sections secured together, and the margin of saiddiaphragm being clamped between the sections of said tank so as to forma watertight joint therebetween, and means for preventing closing ofsaid nipples by said diaphragm.

ANSON ABRAM MARYQW.

